🔍 Key Concepts

• Relationship between power (watts) and energy (watt-hours)** • Converting between watt-hours and kilowatt-hours • Using time in hours when calculating energy consumption over a period

💭 Think About

• How do you combine a constant power level with a length of time to find total energy used? Write that as a simple formula. • Once you have energy in watt-hours, how do you convert that number into kilowatt-hours? • After you do the math, which answer choices match the value(s) you calculated, and what does that tell you about options that combine them?

✅ Before You Answer

• Be sure you express 24 hours in the correct units to match watts (which are joules per second). • Verify your calculation of watt-hours before converting to kilowatt-hours. • Double‑check whether both the watt-hour value and the kilowatt-hour value you calculate appear among the choices.